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CrowdStrike downtime apparently caused by update that replaced a file with 42kb of zeroes (twiiit.com)

submitted 3 months ago* (last edited 3 months ago) by [email protected] to c/[email protected]

189 comments fedilink hide all child comments

…according to a Twitter post by the Chief Informational Security Officer of Grand Canyon Education.

So, does anyone else find it odd that the file that caused everything CrowdStrike to freak out, C-00000291-
00000000-00000032.sys was 42KB of blank/null values, while the replacement file C-00000291-00000000-
00000.033.sys was 35KB and looked like a normal, if not obfuscated sys/.conf file?

Also, apparently CrowdStrike had at least 5 hours to work on the problem between the time it was discovered and the time it was fixed.

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[–] [email protected] 109 points 3 months ago (6 children)

If it had been all ones this could have been avoided.

[–] [email protected] 56 points 3 months ago (5 children)

Just needed to add 42k of ones to balance the data. Everyone knows that, like tires, you need to balance your data.

[–] [email protected] 14 points 3 months ago

Apply the ones in a star shape to distribute pressure evenly

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